The preoperative delayed memory performance on the Rey-Osterrieth Complex Figure (Lezak, 1983) of 54 patients with complex partial seizures of temporal lobe origin was analyzed using 3 different indices. One index (composite) was derived using a common scoring method that included both spatial and figural aspects of memory in its score. The other two indices were derived emphasizing either spatial or figural aspects of memory for the elements of the figure separately. All 3 indices distinguished between individuals with right-sided (RTLE) and left-sided (LTLE) seizure onset. However, spatial memory was significantly lower than figural memory in individuals with RTLE as compared to those with LTLE. Both the spatial and figural memory indices were significantly lower in the presence of magnetic resonance imaging (MRI) evidence for hippocampal sclerosis in individuals with RTLE. Results suggest that while both the spatial and figural aspects of nonverbal memory are sensitive to right hippocampal dysfunction, figural memory may be less vulnerable to the effects of RTLE.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1017/s1355617700001703 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Attractive and repulsive visual aftereffects depend on stimulus contrast.
J Vis
January 2025
Laboratoire des Systèmes Perceptifs, Département d'études cognitives, École normale supérieure, PSL University, France.
Visual perception has been described as a dynamic process where incoming visual information is combined with what has been seen before to form the current percept. Such a process can result in multiple visual aftereffects that can be attractive toward or repulsive away from past visual stimulation. A lot of research has been conducted on what functional role the mechanisms that produce these aftereffects may play.
View Article and Find Full Text PDFIndividual differences in direction-selective motion adaptation revealed by change-detection performance.
Vision Res
December 2024
City St George's, University of London, United Kingdom. Electronic address:
The motion aftereffect (MAE) and motion adaptation in general are usually considered to be universal phenomena. However, in a preliminary study using a bias-free measure of the MAE we found some individuals who showed at best a weak effect of adaptation. These same individuals also performed poorly in a "change detection" test of motion adaptation based on visual search, leading to the conjecture that there is a bimodality in the population with respect to motion adaptation.
View Article and Find Full Text PDFAn attentional approach to geometrical illusions.
Front Psychol
April 2024
Department of Psychology, University of Würzburg, Würzburg, Germany.
It is known for a long time that some drawings composed of points, lines, and areas are systematically misperceived. The origin of these geometrical illusions is still unknown. Here we outline how a recent progress in attentional research contributes to a better understanding of such perceptual distortions.
View Article and Find Full Text PDF(Don't) look where you are going: Evidence for a travel direction signal in humans that is independent of head direction.
J Exp Psychol Gen
April 2024
Department of Neurobiology and Behavior, University of California, Irvine.
We often assume that travel direction is redundant with head direction, but from first principles, these two factors provide differing spatial information. Although head direction has been found to be a fundamental component of human navigation, it is unclear how self-motion signals for travel direction contribute to forming a travel trajectory. Employing a novel motion adaptation paradigm from visual neuroscience designed to preclude a contribution of head direction, we found high-level aftereffects of perceived travel direction, indicating that travel direction is a fundamental component of human navigation.
View Article and Find Full Text PDFThe relationship between nutrient intake and executive function in adults with post-traumatic stress disorder.
J Affect Disord
March 2024
Department of Psychiatry, Faculty of Medicine and Health Sciences, Stellenbosch University, South Africa; South African Medical Research Council/Stellenbosch University Genomics of Brain Disorders Research Unit, Faculty of Medicine & Health Sciences, Stellenbosch University, Cape Town, South Africa.
Background: Executive function (EF) deficits are common in adults with post-traumatic stress disorder (PTSD). Macro- and micronutrient intake are potential modifiable factors that may influence EF in PTSD.
Objectives: To explore the relationship between the daily dietary intake of ω-3 and ω-6 polyunsaturated fatty acids (PUFAs), vitamin C, vitamin E, vitamin D, vitamin B12 and folate, and EF in adults with PTSD.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!